Answer:
C(8) = $290
Step-by-step explanation:
Since Bob's Plumbing charge a flat fee of $50, then it is the y-intercept.
As detailed in the given problem, x is the number of hours they work.
They charge $30 for every x number of hours on the job. This represents the slope.
C(x) represents the total cost of working for x number of hours.
Given these factors, we can establish the following function rule:
C(x) = 30x + 50
To evaluate the function for 8 hours of work:
C(8) = 30(8) + 50
C(8) = 240 + 50
C(8) = 290
Therefore, the cost of working for 8 hours is $290.
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